In Austria, the Immaculate Conception is celebrated on 8th December each year. This religious holiday is seen as a Holy Day of Obligation, meaning Catholic churchgoers are obliged to attend mass. The day pays homage to the belief in the immaculate (without sin) conception of the Virgin Mary. This is a significant event on the liturgical calendar and is reserved for the most important feasts in the Catholic Church.

Holiday practices for the Immaculate Conception vary even within Austria's regions. Generally, businesses and schools are closed for the day, allowing families to have a day-off and participate in religious observances. The churches in Austria stay open for extended hours, conducting prayer meetings, masses, and ceremonies. It is also common for families to light a Mariazell candle in their homes, a candle symbolizing the light of faith that came through Mary.

Although it is a religious holiday, the Immaculate Conception in Austria also marks the start of the Christmas season, with many Christmas markets opening up across the country. This combination of devotion and celebration makes it a wonderful time of year in Austria. It's not merely a solemn occasion but also a joyous one, offering the Austrians an opportunity to acknowledge their faith and prepare for the festive season ahead.